package com.atguigu.gmall.gateway.filter;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

/**
 * title: 网关过滤器-全局过滤器
 * author: Gyh
 * date:2023-04-17 18:14
 * Description:
 */
@Slf4j
@Component
public class AccessFilter implements GlobalFilter, Ordered {

    //过滤器的逻辑
        //exchange 交换机 封装请求，响应对象
        //chain 过滤器链
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        log.info("全局过滤器:网关服务被访问");
        return chain.filter(exchange);
    }

    //过滤器执行顺序 值越小优先执行
    @Override
    public int getOrder() {
        return 0;
    }
}
